---
url: "https://onebag.travel/compare/4qxz8xxgq5/mammut-lithium-30/xpbcc6k4c7/hyperlite-mountain-gear-southwest/"
title: "Mammut Lithium 30 vs Hyperlite Mountain Gear Southwest"
description: "Mammut Lithium 30 vs Hyperlite Mountain Gear Southwest: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/4qxz8xxgq5/mammut-lithium-30/xpbcc6k4c7/hyperlite-mountain-gear-southwest/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Mammut Lithium 30 vs. Hyperlite Mountain Gear Southwest

# Mammut Lithium 30 vs. Hyperlite Mountain Gear Southwest

Two carry-on travel backpacks, compared spec for spec.

## [Mammut Lithium 30](https://onebag.travel/carryon/4qxz8xxgq5/mammut-lithium-30/)

by [Mammut](https://onebag.travel/carryons/?brands=Mammut)

![Front facing view of the Mammut Lithium 30](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990380/carryons/mammut-lithium-30-4qxz8xxgq5.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>30 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>54×26×24 cm</td></tr><tr><td>Airline fit</td><td>40%</td></tr><tr><td>Price</td><td>$160</td></tr></tbody></table>

## Feature by feature

| Mammut Lithium 30 | Feature | Hyperlite Mountain Gear Southwest |
| --- | --- | --- |
| Storage |
| 5 | Compression | 5 |
| None | Expanded Capacity | None |
| 0 | Opening | 2 |
| top | Passport |  |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| removable | Sternum Strap | removable |
| Inside |
| N | Laptop | N |
| 2 | Main Compartments | 1 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| Y | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>100% Polyamide, Bluesign, PFC free, recycled</td><td>Dyneema® 200-denier</td></tr></tbody></table>

## [Hyperlite Mountain Gear Southwest](https://onebag.travel/carryon/xpbcc6k4c7/hyperlite-mountain-gear-southwest/)

by [Hyperlite Mountain Gear](https://onebag.travel/carryons/?brands=Hyperlite Mountain Gear)

![Front facing view of the Hyperlite Mountain Gear Southwest](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990483/carryons/hyperlite-mountain-gear-southwest-xpbcc6k4c7.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>40 L</td></tr><tr><td>Weight</td><td>0.8 kg</td></tr><tr><td>Dimensions</td><td>70×28×17 cm</td></tr><tr><td>Airline fit</td><td>12%</td></tr><tr><td>Price</td><td>$380</td></tr></tbody></table>

## Key differences between the Mammut Lithium 30 and Hyperlite Mountain Gear Southwest

-   **Opening:** Other on the Mammut Lithium 30; Rolltop on the Hyperlite Mountain Gear Southwest.
-   **Main compartments:** 2 on the Mammut Lithium 30; 1 on the Hyperlite Mountain Gear Southwest.
-   **Rain cover:** Yes on the Mammut Lithium 30; No on the Hyperlite Mountain Gear Southwest.

Both have: compression straps, backpack straps, hip belt, sternum strap, water bottle pockets, water resistant.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 23 accept both. 52 accept only the Mammut Lithium 30, and 0 accept only the Hyperlite Mountain Gear Southwest.

### Only the Mammut Lithium 30 fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Astana, Air Caraibes, Air France, Air India, Air Mauritius, Air Nostrum, All Nipon Airways, ANA, Atlas Global, Boliviana de Aviacion, British Airways, Caribbean Airlines, Conviasa, Copa Airlines, Croatia Air, Czech Airlines, EL AL, Finnair, Frontier Airlines, Gol Linhas Aereas, Great Lakes Airlines, Iberia, Indigo, Interjet, Iran Air, Iran Aseman Air, Island Air, Japan Airlines, Jet Airways, Jet2, Kenya Airways, KLM, Kuwait Air, LATAM , Middle East Airlines, Monarch Airlines, Onur Air, Peach, PenAir, Sky Airlines, Southwest Airlines, Spirit Airlines, Sun Country, Thai Airways, Travel Service Airlines, Uzbekistan Air, WOW Airlines.

## Mammut Lithium 30 vs. Hyperlite Mountain Gear Southwest: which should you pack?

The **Hyperlite Mountain Gear Southwest** carries 10L more than the **Mammut Lithium 30** (30L vs. 40L), while the **Hyperlite Mountain Gear Southwest** is the lighter pack at 0.8kg (vs. 0.9kg). For carry-on flexibility, the **Mammut Lithium 30** fits 40% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Hyperlite Mountain Gear Southwest; if you want to travel lighter, the Hyperlite Mountain Gear Southwest is the better call.